Chemistry - Halogen Derivative Question with Solution | TestHub

As the electronegativity order of hybridized carbons is$\mathrm{s}\mathrm{p}>\mathrm{s}{\mathrm{p}}^2>\mathrm{s}{\mathrm{p}}^3$so in an allylic halide, such as$\mathrm{C}{\mathrm{H}}_2=\mathrm{C}\mathrm{H}-\mathrm{C}{\mathrm{H}}_2-\mathrm{C}\mathrm{l}$, the alpha carbon is much more partially positive than the alpha carbon in(n-propyl chloride)${\text{CH}}_{\text{3}}-{\text{CH}}_{\text{2}}-{\text{ CH}}_{\text{2}}-\text{Cl}$. Therefore, the attacking nucleophile will be attracted to the alpha carbon more in the allylic halide compound than in the primary halide. It means allylic halides tend to follow${\mathrm{S}}_{\mathrm{N}2}$pathways more than primary halides.